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Anti-seepage regenerating asphalt concrete and preparation process thereof

A technology of recycled asphalt and preparation technology, which is applied in the field of anti-seepage recycled asphalt concrete and its preparation technology, which can solve the problems of poor interface bonding strength and damage to asphalt concrete, and achieve the advantages of waste disposal, prolonging service life, and stable and lasting efficacy Effect

Inactive Publication Date: 2019-04-16
SHANGHAI SHISHEN IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problem in the prior art that the asphalt concrete is easily damaged when it is eroded by water due to the poor interface bonding strength between asphalt and aggregate, the first purpose of the present invention is to provide an anti-seepage recycled asphalt concrete , by improving the interface bonding strength between asphalt and new aggregates to solve the above technical problems, it has good resistance to water erosion and is not prone to damage during use

Method used

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  • Anti-seepage regenerating asphalt concrete and preparation process thereof
  • Anti-seepage regenerating asphalt concrete and preparation process thereof
  • Anti-seepage regenerating asphalt concrete and preparation process thereof

Examples

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Embodiment 1

[0044] Example 1: A kind of anti-seepage recycled asphalt concrete, the components and their corresponding parts by weight are shown in Table 1, and are prepared through the following steps:

[0045] Step 1: Stir and dry new aggregates, fiber fillers and rare earth materials in corresponding parts by weight in a drying barrel. The temperature is controlled at 100°C, the time is 80 minutes, and the stirring speed is 1100rpm to obtain a dry mixture for later use. ;

[0046] Step 2: Put the regenerated asphalt mixed with the old material into the mixing tank, after preheating, add the regenerant, and stir and mix. The temperature in the mixing tank is maintained at 180°C, the stirring speed is 800rpm, and the time is 30min;

[0047] Step 3, add the dry mixture into the mixing tank, keep the temperature in the mixing tank at 160°C, stir at a stirring speed of 1000rpm, for 25 minutes, add asphalt, and stir and mix, and keep the temperature in the mixing tank at 170°C , the stirrin...

Embodiment 2-8

[0050] Example 2-8: An anti-seepage recycled asphalt concrete, the difference from Example 1 is that each component and its corresponding parts by weight are shown in Table 1.

[0051] Each component and parts by weight thereof in table 1 embodiment 1-8

[0052]

Embodiment 9

[0053] Example 9: A kind of anti-seepage recycled asphalt concrete. The difference from Example 1 is that the new aggregate mainly consists of particle sizes ranging from 0 to 3 mm, 3 to 5 mm, 5 to 13 mm, 13 to 20 mm, and 20 mm. The limestone of ~25mm is composed of 1.6:2.3:7.2:1:3.1 in parts by weight.

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Abstract

The invention discloses an anti-seepage regenerating asphalt concrete and a preparation process thereof, relates to the technical field of asphalt concrete production, and solves the problem that theasphalt concrete is easy to damage when being eroded by water due to poor interface bonding strength between asphalt and aggregate. The anti-seepage regenerating asphalt concrete comprises, by weight,80-90 parts of new aggregate; 6-10 parts of asphalt; 0.6-1.2 parts of mineral powder; 20-24 parts of regenerating asphalt mixed waste material; 0.2-0.4 part of a regenerating agent; 1.8-2.6 parts ofa fiber filler; 0.3-0.5 part of an anti-stripping agent; 0.8-1.2 part of a rare earth material; 0.4-0.6 part of a magnesium stearate. In the use process of the anti-seepage regenerating asphalt concrete, the asphalt and aggregate in the anti-seepage regenerating asphalt concrete has a higher interface strength, which plays a good role in resisting water erosion, the asphalt concrete is not easy tocrack, and has longer service life.

Description

technical field [0001] The invention relates to the technical field of concrete production, in particular to an anti-seepage recycled asphalt concrete and a preparation process thereof. Background technique [0002] Asphalt concrete, commonly known as asphalt concrete, is artificially selected with a certain gradation composition of mineral materials, crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, mixed under strictly controlled conditions made mixture. [0003] In the Chinese invention patent with the publication number CN105948598A, a kind of asphalt concrete is disclosed. 7-15 parts of functional mineral powder, 5-10 parts of fly ash, 5-8 parts of imitation steel fiber, 2-10 parts of halloysite, and 2.8-6.4 parts of silicon carbide micropowder. The modified asphalt is selected from at least one of natural rubber modified asphalt, styrene-butadiene rubber modified asphalt, butadiene rubber m...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B111/27
CPCC04B26/26C04B2111/27C04B14/28C04B18/12C04B18/167C04B2103/0068C04B18/24C04B14/4643C04B24/085C04B22/00C04B24/121
Inventor 时兆武
Owner SHANGHAI SHISHEN IND & TRADE CO LTD
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